20413542630 has 64 divisors (see below), whose sum is σ = 52849843200. Its totient is φ = 5016425856.

The previous prime is 20413542619. The next prime is 20413542649. The reversal of 20413542630 is 3624531402.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 189919 + ... + 277301.

It is an arithmetic number, because the mean of its divisors is an integer number (825778800).

Almost surely, 2^20413542630 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20413542630, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26424921600).

20413542630 is an abundant number, since it is smaller than the sum of its proper divisors (32436300570).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20413542630 is a wasteful number, since it uses less digits than its factorization.

20413542630 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88005.

The product of its (nonzero) digits is 17280, while the sum is 30.

The spelling of 20413542630 in words is "twenty billion, four hundred thirteen million, five hundred forty-two thousand, six hundred thirty".